DFU example doesn't work. need explain step by step

[Mikhail]

Hi!

nRF52. S132, SDK13.

I try to use ble_dfu_send_hex example.

1. what shoul I do first? via nrf gostudio load SD. correct?

Which SD? from this folder (dfu_test_softdevice_s132) Or usual SD (s132_nrf52_4.0.2_softdevice)

2. what should I do next?

[Hung Bui]

Hi Mikhail,

Please follow the documentation on inforcenter, you can also follow my step by step guide here.

[Mikhail]

About known SDK. somthing ofcourse I know. I used some examples for make my application. Try to explain for middle level. If I not understand You, I'll ask. First- let's start usual DFU with button. In the bootloader code I find place where I check pressed button:

if (1) //(nrf_dfu_enter_check()) 

{
NRF_LOG_DEBUG("Application sent bootloader request\n");

enter_bootloader_mode = 1;


  }

and type if(1) therefore I suppose should advertise with DFUTarg? I can't understand- if I just flash SD and that bootloader- without any app- should DFUTarg service advertise? Or need app mandatory?